Main character
Child
Teenage
Martial spirit: Body fused with arcle. It is not twin martial spirit. It is like two bodies one soul, think like xie xie of soul land 3. He can use abilities without transforming but some abilities needs him to transform in kamen rider kuuga.
Powers and abilities:
-Soul rings can amplify his body permanently but he can increase or decrease his powers at his will.
- He can transform into kamen rider kuuga and it's various forms and it will increase his already amplified strength.
-Every soul ring will have abilities common with the powers of kamen rider kuuga.
Note:- As kuuga various forms relates to atomic control of weapons and his ultimate form can directly control atom and can also destabilize them to the point it can become world ending, I didn't give him the ability to directly control elemental powers. He will just be more resistance to the element depending on the form he is using.
Even though it is childish but Red will resist fire and strength, Blue will resist ice and water, Green will resist wind and wood, Purple-silver will resist earth and metal.
He resist them but do not have immunity.
This book is about kuuga so I will not give him some power like body type spirit second awakening and yada yada as he is already very op.